Noticeable audio latency

There is a noticeable delay between when the guest operating system starts to play a sound, and when it actually becomes audible. Perhaps in the range of 100-200 ms--just a guess though, I'm not sure how to time it.

The host is Vista Home Basic x64 and the guest is Debian running Linux 2.6.26.

It should be noted that the game "Diablo" suffers from only about 100 ms of such latency, while games such as Doom (played through the "Chocolate Doom" emulator) suffers from about 1 whole second of such delay. It therefore seems software dependent.

Note the presence of a dedicated audio card on the relatively strong computer.

Play it in vlc (I tested with version 1.1.10) in the guest; adjust the audio/video sync with the k and l keys until the video lines up with the audio.

Do the same in the host.

For me, the audio and video line up best when the audio is 150 ms ahead of the video within the guest. In the host, I recon there is less than 50 ms delay (hard to tell because I can only change the sync in 50 ms increments).

cortana: thanks for the report. About 150 ms delay for videos watched through youtube, too.

Would you mind informing us about your guest and host machines? It seems not all people suffer from the bug. I am under Windows XP guest, and Ubuntu host, here. What about you? (Attach a log file if you will for the developers, alternatively.)